Question

revolva in doua moduri (32+45)×7 (87+13)×5 7×(45+28) 9×(36+43) ​

Answer 1

Explicație pas cu pas:

(32+45)×7=539 7×32+7×45=539

77×7=539 224+315=539

(87+13)×5=500 5×87+5×13=500

100×5=500 435+65=500

7×(45+28)=511 7×45+7×28=511

7×73=511 315+196=511

9×(36+43)=711 9×36+9×43=711

9×79=711 324+387=711

Sper că te-a ajutat!